Year % of total taxes 1972 33.403361344537814 1973 30.05181347150259 1974 30.16393442622951 1975 24.694903086862887 1976 28.762541806020064 1977 27.984790874524716 1978 28.489483747609945 1979 28.903306822938468 1980 25.819742489270386 1981 26.90299532838692 1982 27.99619907352417 1983 25.89064205616751 1984 26.254578754578755 1985 29.200638816508363 1986 29.1110459146252 1987 32.33390327308256 1988 35.05070162859777 1989 41.65022084390565 1990 39.545944339166944 1991 36.960884297792546 1992 39.82396060340192 1993 39.71622204736401 1994 39.465944436215906 1995 39.294395321802234 1996 37.1561398377488 1997 34.73858826221256 1998 41.26230391199141 1999 33.33427088541666 2000 38.07768280016802 2001 37.20322358189267 2002 36.938031559014064 2003 40.48341112438204 2004 40.84387359078423 2005 42.722081312855146 2006 43.72980267928484 2007 46.00131047411492 2008 45.132645280662096 2009 42.344710959574684 2010 42.04972311665405 2011 45.30614476436325 2012 46.527255059610425 2013 46.11518739215236 2014 47.904698829055505 2015 49.93921700355533 2016 50.67776525297126 2017 51.63672347874119 2018 54.36586963319034 2019 54.51520369844739 2020 53.36686858781864 2021 55.01298618515179 2022 59.506575037158086